115540980 has 48 divisors (see below), whose sum is σ = 327426624. Its totient is φ = 30438400.

The previous prime is 115540979. The next prime is 115541003. The reversal of 115540980 is 89045511.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6621 + ... + 16580.

It is an arithmetic number, because the mean of its divisors is an integer number (6821388).

Almost surely, 2^115540980 is an apocalyptic number.

115540980 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

115540980 is an abundant number, since it is smaller than the sum of its proper divisors (211885644).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

115540980 is a wasteful number, since it uses less digits than its factorization.

115540980 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23296 (or 23294 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 33.

The square root of 115540980 is about 10748.9990231649. Note that the first 3 decimals coincide. The cubic root of 115540980 is about 487.0557583518.

The spelling of 115540980 in words is "one hundred fifteen million, five hundred forty thousand, nine hundred eighty".